P S Analytical (PSA), headquartered in the United Kingdom, is a global leader in the development and supply of analytical instruments for the detection of mercury (Hg), arsenic (As), selenium (Se), antimony (Sb), bismuth (Bi), and tellurium (Te) in all types of samples—gases, liquids, and solids.

PSA’s instruments are primarily based on Atomic Fluorescence Spectroscopy (AFS), a technology offering superior sensitivity, selectivity, and linearity compared to more traditional methods such as Atomic Absorption Spectroscopy (AAS). However, where required by regulations, PSA continues to offer mercury analyzers using AAS technology.

Renowned for their reliability and outstanding analytical performance, PSA systems are used across a wide range of industries and applications—from environmental monitoring and industrial compliance to academic research and trace metal speciation. The company’s flexible systems support both total mercury analysis and speciation, along with other hydride-forming elements.

P S Analytical’s strong commitment to research and development enables the company to respond rapidly to evolving customer needs and regulatory demands. Whether providing standard systems or bespoke instrumentation tailored to unique analytical challenges, PSA has built a reputation as a trusted partner in the field of advanced trace metal analysis.